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GUI for Root Locus

version 1.3 (31.9 KB) by

This program helps to sketch root locus plot

9 Ratings



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Invoke the function by calling with a transfer function as its argument.

>> mySys=tf([1 3],[1 5 12 8 0])
>> RLocusGui(mySys) %Invoke GUI

Thought Matlab can create root locus plots, it is still useful to sketch root locus plots by hand. The program, RLocsuGui, takes loop gain as input and then applies (and visually demonstrates) all of the rules that are typically used to sketch the plot by hand.

The program also creates a web page describing the rules as applied to the given loop gain.

The zip file contains a ".m" file and a ".fig" file. Put them both in a directory that is in the Matlab path.

Comments and Ratings (11)

Colin King

Correction: It would be really nice if I didn't have to dig through the code to edit the function

Colin King

Really nice GUI. It would be really nice if we could input our own transfer function, however.


matlab (view profile)

amazing work. made learning root locus became easier.


matlab (view profile)


jason (view profile)

work great, hope u can include a graph paper layout, so that the graph is easier to analysis

Ahmad Sandouka

Nabil al-hadawy

******** Thank you *********
Don't exist any error
This is GUI very nice

s a

it's genius-taught me what seasoned professors couldn't

dr chen

Lot of errors in this program

f f

This program as lot of bugs

jose uerba

It is a elegance form



Fixed a bug that occurred when calling function with argument.


Fixed small bug with web page


I added some bug fixes and made it possible to load systems from the workspace.

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